/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-icon svg {
    display: block;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-search {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search-input {
    width: 200px;
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.header-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
    width: 240px;
}

.header-search-btn {
    position: absolute;
    right: 0.5rem;
    padding: 0.25rem;
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.header-search-btn:hover {
    color: var(--color-primary);
}

.cart-icon {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0.5rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.cart-icon:hover {
    color: var(--color-accent);
}

.cart-count {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    font-size: 0.7rem;
    font-weight: 600;
    color: #fff;
    background: var(--color-accent);
    border-radius: 9px;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
}

.burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-base);
}

.header-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.header-overlay.active {
    display: block;
    opacity: 1;
}

/* Hero */
.hero {
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    padding: var(--space-10) var(--space-4);
    max-width: 1280px;
    margin: 0 auto;
}

.hero-text {
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-4);
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-text-light);
    margin-bottom: var(--space-6);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero-accent {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    pointer-events: none;
}

/* Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.category-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/5;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.category-card:hover {
    transform: translateY(-4px);
}

.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-card:hover img {
    transform: scale(1.05);
}

.category-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: var(--space-6);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 60%);
}

.category-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-6);
}

.product-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.product-image {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--color-surface);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    background: var(--color-accent);
    border-radius: var(--radius-md);
}

.product-badge.out {
    background: var(--color-secondary);
}

.product-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-4);
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
}

.product-name a {
    color: var(--color-text);
}

.product-name a:hover {
    color: var(--color-accent);
}

.product-category {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-top: auto;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
}

.btn-cart {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-cart:hover {
    background: #000;
}

.out-of-stock {
    font-size: 0.875rem;
    color: var(--color-secondary);
}

/* Benefits */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-6);
}

.benefit-card {
    text-align: center;
    padding: var(--space-6);
}

.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    background: var(--color-surface);
    border-radius: 50%;
    color: var(--color-accent);
}

.benefit-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.benefit-text {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Catalog */
.catalog-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-8);
    padding-top: var(--space-6);
    padding-bottom: var(--space-10);
}

.filters-sidebar {
    position: sticky;
    top: calc(76px + var(--space-4));
    height: fit-content;
}

.filters-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-5);
}

.filter-group {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.filter-group:last-child {
    border-bottom: none;
}

.filter-label {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.filter-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.filter-option:hover {
    background: var(--color-surface);
}

.filter-option input[type="radio"],
.filter-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.price-range {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.price-input {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.filter-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.filter-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.catalog-main {
    min-width: 0;
}

.catalog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.catalog-count {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.sort-wrapper label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-right: var(--space-2);
}

.sort-select {
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    font-size: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    cursor: pointer;
}

.mobile-filters-btn {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-primary);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    position: relative;
}

.filter-active-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* Product Detail */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    padding: var(--space-8) 0;
}

.product-gallery {
    position: sticky;
    top: calc(76px + var(--space-4));
    height: fit-content;
}

.gallery-main {
    aspect-ratio: 3/4;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: var(--space-3);
}

.thumb {
    aspect-ratio: 3/4;
    background: var(--color-surface);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.thumb:hover,
.thumb.active {
    border-color: var(--color-primary);
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-data {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.product-header-detail {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
}

.product-header-detail h1 {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.2;
}

.product-price-block {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
}

.product-price-big {
    font-size: 2rem;
    font-weight: 700;
}

.stock-status {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
}

.stock-status.available {
    color: var(--color-success);
    background: rgba(22, 163, 74, 0.1);
}

.stock-status.out {
    color: var(--color-error);
    background: rgba(220, 38, 38, 0.1);
}

.product-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-light);
}

.product-features {
    padding: var(--space-5);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
}

.features-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.features-table {
    width: 100%;
    border-collapse: collapse;
}

.features-table tr {
    border-bottom: 1px solid var(--color-border);
}

.features-table tr:last-child {
    border-bottom: none;
}

.features-table td {
    padding: var(--space-3) 0;
    font-size: 0.95rem;
}

.features-table td:first-child {
    color: var(--color-text-light);
    width: 40%;
}

.product-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.quantity-label {
    font-weight: 500;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.qty-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-text);
    background: var(--color-surface);
    transition: all var(--transition-fast);
}

.qty-btn:hover {
    background: var(--color-border);
}

.qty-input {
    width: 60px;
    height: 40px;
    text-align: center;
    border: none;
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    font-weight: 500;
}

.qty-input:focus {
    outline: none;
}

.out-of-stock-msg {
    padding: var(--space-5);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    text-align: center;
}

.out-of-stock-msg p {
    color: var(--color-text-light);
    margin-bottom: var(--space-4);
}

.similar-products {
    background: var(--color-surface);
}

/* Cart */
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-8);
    align-items: start;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr auto auto auto;
    gap: var(--space-4);
    align-items: center;
    padding: var(--space-4);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.cart-item-image {
    aspect-ratio: 3/4;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.cart-item-name {
    font-size: 1rem;
    font-weight: 600;
}

.cart-item-category {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.cart-item-unit-price {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.cart-item-qty {
    min-width: 140px;
}

.cart-item-total {
    min-width: 120px;
    text-align: right;
}

.cart-subtotal {
    font-size: 1.125rem;
    font-weight: 700;
}

.cart-remove {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.cart-remove:hover {
    color: var(--color-error);
    background: rgba(220, 38, 38, 0.1);
}

.cart-summary {
    position: sticky;
    top: calc(76px + var(--space-4));
    padding: var(--space-6);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
}

.summary-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-5);
}

.summary-rows {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    font-size: 0.95rem;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 700;
}

.delivery-hint {
    margin-top: var(--space-3);
    padding: var(--space-3);
    font-size: 0.875rem;
    color: var(--color-accent);
    background: rgba(37, 99, 235, 0.05);
    border-radius: var(--radius-md);
    text-align: center;
}

/*